INSTRUCTION MANUALDIGITAL BORE GAUGE

Model No. : CDI-35D

Thank you for purchasing the Digital Bore Gauge.
Please read this manual thoroughly before use for proper operation.

■PART IDENTIFICATIONLCD Display

Digital Indicator[ABS/SET]Button※1■SPECIFICATIONS

ABS/SETmmMIN※＊[ZERO/ON]
Button[MIN] Button
Clamp
Screw(mm)18-35Resolution(mm)0.002(µm)

15(µm)

5(µm)

3Adjacent Error※＊ Repeat Accuracy[CAL] Button

Single Probe Measuring Range (mm)Protective CoverSpacer

0.5mm

1mm

Length below grip-130mm

Extension RodExtension
RodSpannerfrom above drawing,
however function will not
be affected.

● Extension Rods ..... 18, 20, 22, 24, 26, 28, 30, 32, 34 mm (9 pieces)● Spanner .................... 1● Battery ....................... CR2032 Lithium Battery (Included for testing)■BATTERY REPLACEMENTNOTICE● This is a precision instrument, use care not to drop orOpen battery door using the tabs
on either side. Insert battery with“+” side facing downward. Push indoor to replace.

mishandle.

● Please do not disassemble or modify.

● Keep instrument away from water and oil.

● Use only with supplied Extension Rods and Washers.
● Keep instrument away from direct sunlight and highProbe Tip
Measurement
Head350(g)ACCESSORIESExtension Washer※Spanner shape may vary

Shaft

1.20.5, 1 mm (One piece each size)

Extension Washer
WeightGrip

CDI-35D

Measurement Range※＊Wide Range Accuracy

ZERO/ONCAL※ Not including quantization error (±1 count)

Model No.

※2

ABS＊：With supplied Digital Indicator.

Guide※1: This button not used.
※2: “0.01” Indicates bar graph display units. Bar graph display
will increase or decrease by one bar for each 0.01mm
change in measured value.

temperatures such as in a car, near a stove or heatsource.
● After use, remove dust and cutting chips and apply
rust preventative oil to components including Extension● Rods, and Extension Washers. When not in use store
in original case.
● This product is for measuring inside diameter; use only
as directed. Improper use may cause accident or injury.
● Avoid using in locations with high electric fields, suchas near fluorescent lights or switching power supplies,
as it may cause erroneous reading to display on LCD.

Battery(CR2032)

Battery
Door

CautionOnly use CR2032 Lithium Battery.

■ASSEMBLY

Attaching the Protective Cover
ZERO/ONInsert

CAL※After attaching to body, press theClamp[ZERO/ON] Button to turn on power. CheckScrew
for proper operation by pressing on theProbe Tip. If the LCD display reading does
not change, readjust the insertion depth of the indicator.

③Chose combination of Rod, and Washer applicable for desired
measurement range.
Use supplied Spanner to attach the Extension Rod.

When using the Protective Cover, please attach using
the following procedure.
①Loosen the Clamp Screw and remove Clamp andSpacer from shaft. (Figure: 1)②Without removing the Rod or Washers, follow the“Assembly” procedure to reattach the Indicator andClamp without the Spacer.

③Mount the Protective Cover to the Indicator and attachwith the 2 mounting screws. (Figure: 2)
Screws Indicator
Clamp
Screw

RemoveSpacerAttach

MIN※To reattach the protective cover, please referto the section: “Attaching the ProtectiveCover”②Loosen the Clamp Screw and insert theDigital Indicator into the gauge body.
Tighten Clamp Screw to secure.

ABS/SETmmRemove①Remove the protective cover byunscrewing the two screws which holdthe cover in place.

Example: For 28mm Measurement

Extension
Rod: 28mm(Figure: 1)

Example: For 29.5mm Measurement

Extension
Rod: 28mm＋ Washer: 1mm ＋ Washer: 0.5mm
Extension

Extension(Figure: 2)

Protective
Cover■MEASUREMENT
For accurate measurements, please follow the procedure below.
①In cross section perpendicular to the axis of the bore, position the gauge along diameter ⓐ. (Figure: 1)
This is the maximum distance, and at this point the Indicator will read the maximum value.
The Guide will automatically position the Measurement Head along diameter ⓐ.
②In cross section parallel to the axis of the bore through diameter ⓐ, position the indicator to minimize the distance ⓑ. (Figure: 2)
In this position the Indicator will read the minimum value. This position must be manually achieved by pivoting the gauge and noting
the point where the Indicator shows the minimum value. (Figure: 3)ａｂmm

ABS/SETABSMIN
CALZERO/ON(Figure: 1)(Figure: 2)(Figure: 3)■OPERATION①Before use, please make sure the Measurement Head components are securely tightened. Tighten as necessary.

②Clean the gauge head and the ID of a Ring Gauge Standard using parts cleaner or cleaning solution.
③Press the [ ZERO/ON ] Button to turn on power. ※Power is turned off with a long press to the [ ZERO/ON ] Button.

ABSOLUTE MODE (ABS)①Turn on power. If the “”, “※Displays absolute measurement of workpiece.

” symbols are displayed on the LCD, press the [MIN] Button to turn off.

②Make the “SET” value of the Bore Gauge match the ID of the Ring Gauge Standard. Press and hold the [ABS/SET] Button until“SET” blinks on the display.
③Continue holding the [ABS/SET] Button and the display character to the left will blink. Use a short press of the [ABS/SET] Button tochange the value, and a long press to change the character being modified.
Repeat this process to enter the dimension of the Ring Gauge Standard on the LCD display. (Figure: 4)④When the value is entered, the flashing position will return to “SET”.
A short press of the [ABS/SET] Button to turn off the flashing.

⑤Insert the Measurement Head into the Ring Gauge Standard andpress the [MIN] Button to put the Indicator into minimum-mode. Slowly
pivot the gauge (Figure: 3) to display the minimum value.
⑥Remove the gauge from the Ring Gauge and press the [CAL] Button
until “OK” is momentarily displayed.
Preparation for measurement is now complete.

ABS

ABS/SETmm

MIN

ZERO/ONCAL⑦Put the gauge into the workpiece to be measured, and pivot the gauge
slowly. (Figure: 3) The LCD will display the measured value. (Figure: 5)※Press the [ON/ZERO] Button momentarily to reset display inpreparation to measure the next workpiece.

COMPARATIVE MEASUREMENT(Figure: 4)※Display difference between workpiece andreference standard.

①Turn on power. If “”, or “” symbols are displayed on the LCD,
press the [MIN] Button to turn off. If “ABS” is displayed press the [ABS]
Button to turn off.

OKABS

SET

ABS/SETmm

MIN

ZERO/ON

Workpiece
Workpiece Dimension(Figure: 5)

ZERO/ON

Workpiece
Difference between
Workpiece andReference Standard (Figure: 6)

CAL②Insert the measuring head into the Ring Gauge Standard and press[MIN] Button to put the Indicator into minimum-mode. Slowly pivot thegauge (Figure: 3) to display the minimum value.
③Remove the gauge from the Ring Gauge and press the [CAL] Button
until “OK” is momentarily displayed.
Preparation for measurement is now complete.

④Put the gauge into the workpiece to be measured, and pivot the gauge
slowly. (Figure: 3) The LCD will display the difference between themeasured workpiece and the reference standard. (Figure: 6)※Press the [ON/ZERO] Button momentarily to reset display inpreparation to measure the next workpiece.

ABS/SETmm

MIN

CAL

■TROUBLESHOOTINGERROR CONDITION

CORRECTIVE ACTION● LCD does not display● Cycle power by removing and● Display is not clear

replacing battery.
● Replace battery with new one.

● Displayed value is unstable

Ring Gauge
Adjust Reading Standard※If problem persists, or if you have any questions,please contact distributor or place of purchase.
※Please note, manufacturer is unable to respondto inquires or provide service directly. Pleasecontact distributor or place of purchase.

Niigata seiki Co., Ltd.
6-15-22, Tsukanome, Sanjo, Niigata, Japan, 955-0055
Tel. : +81-256-31-5660 Fax. : +81-256-39-7730

MAIL:intl.sales@niigataseiki.co.jp
URL http://www.niigataseiki.co.jp

I241-K 1506